3rd Order Temporal Correlation Function of Pseudo-Thermal Light
Yu Zhou, Jianbin Liu, and Yanhua Shih
TL;DR
This paper experimentally demonstrates a third-order temporal correlation in pseudo-thermal light, revealing a three-photon bunching effect due to multi-photon interference, which enhances simultaneous detection probability.
Contribution
It reports the first observation of third-order temporal correlation in pseudo-thermal light, highlighting a new multi-photon interference phenomenon.
Findings
Six times higher chance of simultaneous detection at the same time
Observation of three-photon bunching effect
Correlation caused by multi-photon interference
Abstract
This experiment reports a nontrivial third-order temporal correlation of chaotic-thermal light in which the randomly radiated thermal light is observed to have a 6-times greater chance of being captured by three individual photodetectors simultaneously than that of being captured by three photodetectors at different times (separated by the coherent time of pseudo-thermal light), indicating a "three-photon bunching" effect. The nontrivial correlation of thermal light is the result of multi-photon interference.
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Taxonomy
TopicsRandom lasers and scattering media · Quantum optics and atomic interactions · Advanced Optical Imaging Technologies